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| Preface | |
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| Acknowledgments | |
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| Getting Started | |
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| Introducing the JavaScript Language | |
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| The JavaScript Language | |
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| JavaScript-Enabled Browsers | |
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| Client-Side JavaScript | |
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| Server-Side JavaScript | |
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| The Internet | |
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| Network Protocols | |
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| IP Addresses | |
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| Domains | |
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| The World Wide Web | |
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| How the World Wide Web Works | |
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| Helper Applications | |
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| Plug-ins | |
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| Java Applets | |
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| Summary of New Terms and Concepts | |
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| Introducing the Scripting Environment | |
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| Hello World Tradition | |
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| Scripting Terminology | |
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| Understanding the Elements of the Hello World Script | |
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| JavaScript and HTML | |
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| Embedding a Script | |
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| Adding Text for Non-JavaScript Browsers | |
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| Loading a Script File | |
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| Adding JavaScript Comments | |
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| Adding HTML Comments | |
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| Displaying Text | |
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| Using the Basic Template | |
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| Immediate Activation Template | |
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| Deferred Activation | |
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| Recommended Programming Style Guide | |
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| General Comments and Rules | |
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| Comments | |
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| Code Indentation | |
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| White Space | |
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| Statements | |
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| Comparisons | |
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| Identifier Style (Variable, function, and object name choices) | |
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| Variables | |
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| Functions | |
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| Objects | |
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| Source Files (.js Files to be Included in a Script) | |
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| Looking at the Script-Writing Process | |
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| Creating the Hello World Script | |
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| Running the Hello World Script | |
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| Summary of New Terms and Concepts | |
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| Introducing General Scripting Concepts | |
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| Data Types | |
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| Variables | |
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| Identifiers | |
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| White Space | |
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| Literal Values | |
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| Declaring a Variable | |
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| Assigning a Value to a Variable | |
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| Initializing a Variable | |
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| Functions | |
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| Operators | |
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| Precedence | |
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| Mathematical Operators | |
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| Expressions | |
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| Statements | |
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| Summary of New Terms and Concepts | |
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| Debugging Scripts | |
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| Syntax Errors | |
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| Design or Logic Errors | |
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| HTML Layout and Script Parsing Order | |
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| Operator Precedence | |
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| JavaScript Error Messages | |
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| Function does not always return a value | |
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| identifier is a reserved word | |
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| missing ) after argument list | |
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| missing } after function body | |
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| missing ; after for-loop condition | |
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| missing ; after for-loop initializer | |
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| nested comment | |
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| out of memory | |
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| something cannot be indexed as an array | |
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| something has no properties | |
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| something is not defined | |
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| something is not a function | |
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| something is not a numeric literal | |
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| syntax error | |
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| unterminated string literal | |
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| Some Debugging Tips and Tricks | |
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| Using Netscape JavaScript Protocol to Debug Statements | |
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| Using Alerts to Set Breakpoints | |
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| String Formatting Tip | |
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| Looking at Object Properties | |
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| Debugging Checklist | |
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| Summary of New Terms and Concepts | |
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| Creating HTML Pages | |
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| Introducing Objects | |
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| Object Properties | |
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| Object Methods | |
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| Referencing Object Properties and Methods | |
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| Events | |
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| Object-Manipulation Statements | |
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| The this Keyword | |
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| The for...in Statement | |
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| The with Statement | |
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| The new Statement | |
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| Built-in Objects | |
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| Summary of New Terms and Concepts | |
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| Creating Windows | |
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| Displaying a Status Message | |
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| Example of status and defaultStatus Properties | |
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| Explanation of Example Script | |
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| Example of status and defaultStatus Properties with a Timeout | |
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| Controlling the Structure of a Window | |
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| The frames Property | |
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| The length Property | |
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| Referring to a Window | |
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| Examples of frame and Window Naming Properties | |
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| Explanation of Example Scripts | |
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| A Three-Frame Window Example | |
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| Referencing document, history, and location Objects in a Window | |
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| Example of Referencing document, history, and location Objects | |
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| Opening a New Window | |
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| Examples of open() Method | |
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| Finding Which Window Is the Opener | |
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| Example of window.opener Property | |
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| Using the unescape() Function to Reformat Location Values | |
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| Determining the State of a Newly Opened Window | |
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| Example of Using the closed Property | |
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| Displaying Informational Messages in an Alert Window | |
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| Example of the alert( ) Method | |
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| Explanation of the windowAlert.html Script | |
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| Closing a Window | |
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| Example of the close() Method | |
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| Displaying a Confirmation Message | |
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| Example of confirm() Method | |
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| Prompting Users for Input | |
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| Example of prompt() Method | |
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| Controlling the Input Focus in Windows | |
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| Example of blur() and focus() Methods | |
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| Using Event Handlers to Control Window Focus | |
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| Example of onBlur and onFocus Event Handlers | |
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| Moving Around within a Window | |
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| Example of scroll() Method | |
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| Using Timeouts | |
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| Example of Timeouts in a Script | |
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| Using Event Handlers on Load and Unload | |
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| Example of onLoad and onUnload Event Handlers | |
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| Using an Event Handler to Capture Interpreter Error Messages | |
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| Example of Capturing and Displaying Error Messages | |
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| Explanation of windowOnerrorHandler.html Script | |
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| Example of Hiding Error Messages | |
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| Summary of New Terms and Concepts | |
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| Creating Documents | |
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| Controlling Document Colors | |
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| Example of Setting Document Colors | |
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| Extracting Title, Location, Modification, and Document Referrer Information for a Document | |
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| Example of Displaying All of the Properties of a Document | |
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| Example of Comparison of location and URL Document Properties | |
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| Example of Finding Where a Document Came From | |
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| Working with the anchors Property | |
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| Example of Using a Named Anchor | |
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| Example of an Anchor That Is Also a Link | |
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| Example of a Link to Another Window | |
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| Example of Using Anchors to Move Around in a Document | |
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| Example of Using the Anchors Array | |
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| Working with the links Property | |
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| Example of Using the links Property | |
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| Referencing Forms in a Document | |
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| Example of Referencing Forms in a Document | |
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| Referencing Images in a Document | |
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| Example of Using the Images Array | |
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| Referencing Java Applets in a Document | |
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| Example of Including a Java Applet | |
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| Finding Plug-ins Embedded in a Document | |
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| Example of Counting Plug-Ins | |
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| Finding the Document Domain | |
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| Example of Finding the Document Domain | |
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| Storing User-Generated Information: the cookie Property | |
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| Limitations of the cookie Property | |
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| Example of Creating a cookie Property | |
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| Writing into a Document | |
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| Opening, Closing, and Clearing a Document | |
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| Example of Document Methods | |
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| Summary of New Terms and Concepts | |
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| Controlling History | |
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| Displaying history Properties | |
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| Determining the Number of URL Links | |
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| Example of the history.length Property | |
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| Navigating the History List | |
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| Example of history.forward() and history.back() Methods | |
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| Example of Using Images with forward and back Methods | |
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| Example of history.go() Method | |
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| Data Tainting and History Properties | |
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| Example of current, previous, and next Properties | |
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| Extracting Information from the History List | |
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| Example of toString() Method | |
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| Summary of New Terms and Concepts | |
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| Working with Images | |
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| Using the src Property | |
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| Example of Using image.src to Substitute Images | |
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| Prestaging Images with the lowsrc Property | |
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| Example of Prestaging Big Images with Low-Resolution Files | |
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| Checking If an Image Has Completed Loading | |
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| Example of Checking If an Image Has Completed Loading | |
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| Using Read-Only Image Properties | |
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| Example of Displaying Image Properties | |
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| Using the Image Constructor | |
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| Example of Using the Image Constructor | |
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| Example of Animation Script | |
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| Using the onLoad Event Handler | |
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| Using the onLoad Event Handler to Display an Alert | |
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| Using the onLoad Event Handler to Create a Slide Show | |
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| Using the onLoad Event Handler to Change the Image Source | |
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| Getting into Trouble with the onLoad Event Handler | |
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| Planning for Error Handling | |
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| Using the onError Event Handler to Catch Errors | |
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| Planning for the Stopping of Image Loading | |
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| Using the onAbort Event Handler When Users Click on the Stop Button | |
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| Embedding Java Applets in Your Web Page | |
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| Applet Files | |
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| Downloading the JDK | |
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| Running the Java Compiler | |
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| Run | |